OpenTechnical

OT-2026-000071478

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, vented before set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000071478) never changes.

Identity and time

Publication numberOT-2026-000071478 · never reused
Internal UUID01a0ae91-e0ed-70e2-94ac-1a55a4952776 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071478
StatusPUBLIC

Content hashes

Canonical textc55de6b73b475805a9036b670429935c71cc11f3ea4fe18e3f8e54d33111600c
Markdownb40e1b0a92768657d58302bcd65e9a195150499223b0e75ad0d9fd6b3efb4475
PDF
Publication pagec73eeeca5f631782f25689a3632958da4684a89bf52ac61e60ef3d72a08c409d
Manifest0de0beba10ec58065023bf1d6fb34a5c099224db4d7ec3bc93a3b557bcf494f2

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureOBtVmFRDc5nWe5eyxioyZ3YrFK68v2N77nIL4shsB/62zbwp+DAP89Cn32AgPkC4DRIu9nF4RO6FTrtOlheKDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:24:48.868712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071478
observed c73eeeca5f631782f25689a3632958da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:48.848759ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071478/manifest.json
observed 0de0beba10ec58065023bf1d6fb34a5c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:48.827560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071478/publication.md
observed b40e1b0a92768657d58302bcd65e9a19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:48.810279ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071478/publication.txt
observed c55de6b73b475805a9036b670429935c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.